RPM not staible

[Alooi SVT]

Hi All,

I have a 2003 cobra and i am facing an issue where the rpm is not staible as it constantly runs rich and lean, dont know exactly what to do honestly.:shrug:

Thanks all need you reply ASAP

 

[mach1033]

you need to post more info. like mods to your car.

 

[IA Shelby]

By your description I assume you feel the car "surging".

If that is the case did you have the car recently tuned or load a new time?

The maf sensor would be my first guess.

I am sure others with more insight will chime in.